I am seriously considering this approach as well, but even more so: a 43mm T100-base set (with high-roller T500-base option) using low-contrast turquoise 100, purple 500, salmon 1000, lemon 5000, red 25k, and white 100k.
The white chip is quite a bit bolder than the rest, and may get replaced with grey or blue.
One reason for going monochrome with these is that I already have a p5woody-designed 43mm hybrid set that uses those charcoal/blue, lavender/beige, and yellow/red colors for the T100, T500, and T1000 denoms..... which look great together, but I'd like this set to be a little different.
I'm also considering doing a B shield with BGinGA text, but not sure if I really want to personalize at the expense of resale value....